Compressed air drying device

Abstract

The utility model discloses a compressed air drying device which comprises a freezing type compressed air drying machine, and an air inlet pipe is arranged on the surface of the top of the freezing type compressed air drying machine. The pretreatment filtering assembly comprises a pretreatment filtering box and a box cover which are combined, a first pipeline and a second pipeline are arranged on the opposite surfaces of the pretreatment filtering box respectively, a filtering plate is arranged in the pretreatment filtering box, and a connecting rod is fixedly connected to the surface of the box cover; filtering design for pre-filtering compressed air is arranged on the outer surface of the dryer body, dust removal filler in the tennis cage can filter impurities, the compressed air enters the pre-treatment filtering box, a filtering plate can filter particle impurities contained in the compressed air, and under the thrust action of an electric push rod, the particle impurities can be filtered out. The box cover, the connecting rod and the wiping bristle plate move outwards, the wiping bristle plate wipes a layer of impurities deposited on the surface of the filter plate, and blockage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air drying device technical field, concretely relates to a compressed air drying device. BACKGROUND

[0002] Compressed air contains moisture, and generally needs to be dried. A conventional compressed air drying device is a refrigeration dryer. The principle is that the refrigeration system inside the dryer cools the wet air to below the dew point temperature, causing the water vapor in the air to condense into liquid water. The liquid water is then separated by a separator, thereby obtaining dry compressed air.

[0003] When the refrigeration dryer is used to dry compressed air, the compressed air contains a certain amount of dust, sand and other impurities. When the compressed air containing impurities enters the refrigeration dryer, the impurities will deposit on the inner surface of the pipeline in the dryer due to air flow, causing blockage. Generally, a filter is provided inside the refrigeration dryer. However, when the filter is cleaned, the cabinet of the refrigeration dryer needs to be disassembled and opened, and the filter needs to be disassembled and cleaned or replaced. The process is relatively complex. There is no filter device on the outer surface of the refrigeration dryer body to pre-filter the compressed air.

[0004] The existing refrigeration dryer has the problem that there is no filter device on the outer surface of the dryer body to pre-filter the compressed air when drying compressed air. Therefore, the present application provides a compressed air drying device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a compressed air drying device to solve the problem of the lack of a filter device on the outer surface of the dryer body to pre-filter the compressed air as mentioned in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a compressed air drying device, comprising

[0007] A refrigeration compressed air dryer is provided on the top surface of the refrigeration compressed air dryer.

[0008] A pretreatment filter assembly includes a combined pretreatment filter box and a box cover. The first and second pipes are respectively provided on the opposite surfaces of the pretreatment filter box. A filter plate is provided inside the pretreatment filter box. A connecting rod is fixedly connected to the surface of the box cover. A wiping brush plate is fixedly connected to one end of the connecting rod.

[0009] A moving assembly includes a fixed block fixed to the pretreatment filter box by screws, an electric push rod fixed perpendicularly to the fixed block, and a connecting block at one end of the electric push rod. An electromagnet is fixedly connected to the surface of the connecting block by screws. A protrusion is welded to the connecting block.

[0010] The connecting assembly comprises a connecting plate fixed with the box cover by screws, a limiting frame vertically connecting the end of the connecting plate, and a locking screw penetrating the limiting frame.

[0011] Preferably, the first pipeline is communicated with the air inlet pipe, the pretreatment filter box is communicated with the first pipeline and the second pipeline, and the filter plate is in an inclined state and has a mesh structure.

[0012] Preferably, the end of the connecting rod away from the box cover is in a right angle structure, the wiping brush plate is in an inclined state, and the wiping brush plate is attached to the surface of the filter plate.

[0013] Preferably, the limiting frame is in a frame structure, the protruding block penetrates the connecting plate and the limiting frame, and the locking screw penetrates the protruding block.

[0014] Preferably, the surface of the pretreatment filter box is attached with a frame-shaped sealing gasket by glue.

[0015] Preferably, the surface of the second pipeline is fixedly connected with a limiting cylinder, and the limiting cylinder is connected with a coarse filter assembly, the coarse filter assembly comprising a connecting cylinder threadedly and rotatably connected with the limiting cylinder, a connecting column vertically connecting the connecting cylinder, a tennis cage welded at one end of the connecting column, and dust removal filler arranged in the tennis cage, and the connecting cylinder is in a T-shaped column structure.

[0016] Preferably, the second pipeline is internally provided with symmetrically distributed gas collecting cylinders, the gas collecting cylinders are in a hollow conical structure with one end being narrow and the other end being wide, and the tennis cage is located between the narrow ends of the opposite gas collecting cylinders.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] In the present application, the filter design for pre-filtering compressed air is arranged on the outer surface of the dryer body, the dust removal filler in the tennis cage can filter impurities, the compressed air enters the pretreatment filter box, the filter plate can filter the particulate impurities contained in the compressed air, under the thrust of the electric push rod, the box cover, the connecting rod and the wiping brush plate move outward, the wiping brush plate wipes off the layer of impurities deposited on the surface of the filter plate, and blockage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 is a structural schematic view of the present application;

[0020] Figure 2 Fig. 2 is a structural schematic view of the present application; Figure 1 Fig. 3 is an enlarged structural schematic view of part A in Fig. 2;

[0021] Figure 3A three-dimensional structural schematic view of the connecting block of the utility model;

[0022] Figure 4 A sectional structure schematic view of the pretreatment filter box of the utility model;

[0023] Figure 5 A top view structure schematic view of the box cover of the utility model;

[0024] Figure 6 A sectional structure schematic view of the second pipeline of the utility model;

[0025] Figure 7 A three-dimensional structure schematic view of the connecting cylinder of the utility model;

[0026] In the figure: 1, frozen type compressed air drying machine; 2, pretreatment filter box; 3, box cover; 4, connecting plate; 6, limiting frame; 7, filter plate; 8, connecting rod; 11, air inlet pipe; 21, first pipeline; 22, second pipeline; 23, sealing gasket; 51, fixed block; 52, connecting block; 53, protruding block; 54, electric push rod; 55, electromagnet; 61, locking screw; 81, wiping bristle plate; 91, connecting cylinder; 92, connecting column; 93, tennis cage; 94, dust removal filler; 221, limiting cylinder; 222, gas collecting cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1 to 7The utility model provides a technical scheme: a compressed air drying device, including refrigeration type compressed air drying machine 1, the top surface of refrigeration type compressed air drying machine 1 is equipped with air inlet pipe 11, the structure and principle of refrigeration type compressed air drying machine 1 are prior art, this application does not make detailed elaboration, air inlet pipe 11 is connected with first pipeline 21, when compressed air enters air inlet pipe 11, first passes through preprocessing filter box 2 and carries out filtration, preprocessing filter assembly, including combined preprocessing filter box 2 and box cover 3, preprocessing filter box 2 and box cover 3 form the sealed filter device, and the cavity inside that preprocessing filter box 2 and box cover 3 form is entered by compressed air, the opposite surface of this preprocessing filter box 2 is equipped with first pipeline 21 and second pipeline 22 respectively, second pipeline 22 is connected with the pipeline of outside compressed air delivery, and compressed air is delivered to air inlet pipe 11 along the path of second pipeline 22, preprocessing filter box 2 and first pipeline 21, and the inside of preprocessing filter box 2 is equipped with filter plate 7, filter plate 7 is meshed, and the mesh number on filter plate 7 can be designed according to actual conditions, reaches the effect of filtering the particulate impurities contained in compressed air, filter plate 7 can filter the impurities contained in compressed air, and the surface of box cover 3 is fixedly connected with connecting rod 8, one end of the connecting rod 8 is fixedly connected with wiping bristle plate 81, wiping bristle plate 81 is attached to the surface of filter plate 7, when box cover 3 and connecting rod 8 and wiping bristle plate 81 move to the outside direction away from preprocessing filter box 2, wiping bristle plate 81 wipes the layer of impurities settled on the surface of filter plate 7, reaches the effect of cleaning the impurities on the surface of filter plate 7, avoids causing blockage, moving assembly, including the fixed block 51 of preprocessing filter box 2 through screw, the electric push rod 54 of vertical fixed block 51, the connecting block 52 of vertical electric push rod 54 one end, the surface of the connecting block 52 is fixed with electromagnet 55 through screw, and electric push rod 54 is fixed with fixed block 51 and connecting block 52 through screw, and electric push rod 54 plays the role of changing the position of connecting plate 4 and box cover 3, when electric push rod 54 changes from shortening state to extension elongation state, connecting plate 4 is driven, and box cover 3 is driven by connecting plate 4, can change the position of box cover 3, the connecting block 52 is welded with lug 53, and the end of connecting plate 4 is arranged outside the lug 53, and lug 53 plays the role of limiting, guarantees the accuracy of connecting plate 4 installation, and connecting plate 4 is made of magnetic metal material, and electromagnet 55 is firmly adsorbed with connecting plate 4 under the condition of charging electromagnet 55, connecting assembly, including the connecting plate 4 of box cover 3 through screw, the limiting frame 6 of vertical connecting plate 4 end, the locking screw 61 of penetrating limiting frame 6, when box cover 3 is installed on preprocessing filter box 2, the end of connecting plate 4 is arranged outside the lug 53, the lug 53 penetrates limiting frame 6, and locking screw 61 locks lug 53.

[0029] In the embodiment, the first pipeline 21 is communicated with the air inlet pipe 11, the pretreatment filter box 2 is communicated with the first pipeline 21 and the second pipeline 22, compressed air is delivered to the air inlet pipe 11 along the path of the second pipeline 22, the pretreatment filter box 2 and the first pipeline 21, the filter plate 7 is in an inclined state, the filter plate 7 is a mesh structure, and the filter plate 7 can filter impurities contained in the compressed air.

[0030] In the embodiment, the end, away from the box cover 3, of the connecting rod 8 is a right angle structure, the wiping brush plate 81 is in an inclined state, the wiping brush plate 81 is attached to the surface of the filter plate 7, the wiping brush plate 81 is attached to the surface of the filter plate 7, when the box cover 3, the connecting rod 8 and the wiping brush plate 81 move to the outside direction, away from the pretreatment filter box 2, the wiping brush plate 81 wipes a layer of impurities deposited on the surface of the filter plate 7, so that the surface of the filter plate 7 is cleaned.

[0031] In the embodiment, the limiting frame 6 is a frame structure, the protruding block 53 penetrates through the connecting plate 4 and the limiting frame 6, the locking screw 61 penetrates through the protruding block 53, when the box cover 3 is installed on the pretreatment filter box 2, the end of the connecting plate 4 is sleeved outside the protruding block 53, and the protruding block 53 penetrates through the limiting frame 6.

[0032] In the embodiment, the surface of the pretreatment filter box 2 is attached with the frame-shaped sealing gasket 23 through glue, the sealing gasket 23 is attached to the side of the box cover 3, and the sealing effect is achieved.

[0033] In the embodiment, the surface of the second pipeline 22 is fixedly connected with the limiting cylinder 221, the limiting cylinder 221 is connected with a rough filter assembly, the rough filter assembly comprises a connecting cylinder 91 which is connected with the limiting cylinder 221 in a threaded manner, a connecting column 92 which is perpendicular to the connecting cylinder 91, a tennis ball cage 93 which is welded to one end of the connecting column 92, and dust removal filler 94 which is arranged in the tennis ball cage 93, the dust removal filler 94 is made of aluminum oxide material, the connecting cylinder 91 is a "T"-shaped column structure, the second pipeline 22 is internally provided with symmetrically-distributed gas collecting cylinders 222, the gas collecting cylinders 222 are internally hollow conical structures with one end being narrow and the other end being wide, the tennis ball cage 93 is located between the narrow ends of the opposite gas collecting cylinders 222, when compressed air is delivered along the path of the second pipeline 22, the pretreatment filter box 2 and the first pipeline 21, the compressed air enters the inside of the second pipeline 22, and the compressed air flows through the tennis ball cage 93 under the guidance of the gas collecting cylinders 222, the dust removal filler 94 in the tennis ball cage 93 filters impurities contained in the compressed air, the connecting cylinder 91 is connected with the limiting cylinder 221 in a threaded manner, the connecting cylinder 91 and the tennis ball cage 93 can be detachably connected, and the tennis ball cage 93 and the dust removal filler 94 are convenient to replace.

[0034] The working principle and use process of the utility model are as follows:

[0035] When the refrigeration type compressed air drier 1 dries the compressed air, the compressed air is delivered along the path of the second pipeline 22, the pretreatment filter box 2 and the first pipeline 21 to the air inlet pipe 11;

[0036] The compressed air enters the inside of the second pipeline 22, and the compressed air flows through the tennis cage 93 under the guide of the air collecting cylinder 222, and the dust removal filler 94 inside the tennis cage 93 filters the impurities contained in the compressed air;

[0037] The connecting cylinder 91 is connected with the defining cylinder 221 through thread screwing, and the connecting cylinder 91 and the tennis cage 93 are detachably connected, so that the tennis cage 93 and the dust removal filler 94 are convenient to replace;

[0038] When the compressed air enters the pretreatment filter box 2, the filter plate 7 can filter the particulate impurities contained in the compressed air, and the particulate impurities contained in the compressed air form a layer of dust on the surface of the filter plate 7;

[0039] When the electric push rod 54 changes from the shortened state to the extended elongated state, the connecting plate 4 is driven, the connecting plate 4 drives the box cover 3, and the position of the box cover 3 can be changed;

[0040] When the box cover 3 and the connecting rod 8 and the wiping brush plate 81 move away from the outside of the pretreatment filter box 2 under the pushing force of the electric push rod 54, the wiping brush plate 81 wipes the layer of impurities deposited on the surface of the filter plate 7, the effect of cleaning the impurities on the surface of the filter plate 7 is achieved, and blockage is avoided;

[0041] The connecting plate 4 is fixed by magnetic attraction with the electromagnet 55 and is locked and fixed through the locking screw 61, the connecting plate 4 and the connecting block 52 are in a split type structure, the connecting plate 4 and the box cover 3, the connecting rod 8 and the wiping brush plate 81 are detachable, and the wiping brush plate 81 is convenient to clean;

[0042] In summary: the drier body outer surface of the present application has a filter design for pretreating the compressed air, the dust removal filler 94 in the tennis cage 93 can filter the impurities, the compressed air enters the pretreatment filter box 2, the filter plate 7 can filter the particulate impurities contained in the compressed air, the box cover 3 and the connecting rod 8 and the wiping brush plate 81 move away under the pushing force of the electric push rod 54, the wiping brush plate 81 wipes the layer of impurities deposited on the surface of the filter plate 7, and blockage is avoided.

[0043] Although the embodiments of the present application have been shown and described (see the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compressed air drying apparatus, characterized by: include A refrigerated compressed air dryer (1) is provided with an air inlet pipe (11) on the top surface of the refrigerated compressed air dryer (1); The pretreatment filter assembly includes a combined pretreatment filter box (2) and a box cover (3). The pretreatment filter box (2) has a first pipe (21) and a second pipe (22) respectively on opposite surfaces. The pretreatment filter box (2) has a filter plate (7) inside. A connecting rod (8) is fixedly connected to the surface of the box cover (3). A wiping brush plate (81) is fixedly connected to one end of the connecting rod (8). The moving assembly includes a fixing block (51) fixed to the pretreatment filter box (2) by screws, an electric push rod (54) of the vertical fixing block (51), and a connecting block (52) at one end of the vertical electric push rod (54). An electromagnet (55) is fixed to the surface of the connecting block (52) by screws, and a protrusion (53) is welded on the connecting block (52). The connecting assembly includes a connecting plate (4) fixed to the cover (3) by screws, a limiting frame (6) at the end of the vertical connecting plate (4), and a locking screw (61) passing through the limiting frame (6).

2. A compressed air drying apparatus according to claim 1, characterised in that: The first pipe (21) is connected to the air inlet pipe (11), the pretreatment filter box (2) is connected to the first pipe (21) and the second pipe (22), the filter plate (7) is in an inclined state, and the filter plate (7) is a mesh structure.

3. A compressed air drying apparatus according to claim 1, characterised in that: The end of the connecting rod (8) away from the cover (3) is a right-angle structure, the wiping brush (81) is in an inclined state, and the wiping brush (81) is in contact with the surface of the filter plate (7).

4. A compressed air drying apparatus according to claim 1, characterised in that: The limiting frame (6) is a frame structure, the protrusion (53) penetrates the connecting plate (4) and the limiting frame (6), and the locking screw (61) penetrates the protrusion (53).

5. A compressed air drying apparatus according to claim 1, characterized in that: The surface of the pretreatment filter box (2) is glued with a frame-shaped sealing gasket (23).

6. A compressed air drying apparatus according to claim 1, characterised in that: A limiting cylinder (221) is fixedly connected to the surface of the second pipe (22). A coarse filter assembly is connected to the limiting cylinder (221). The coarse filter assembly includes a connecting cylinder (91) that is threadedly connected to the limiting cylinder (221), a connecting column (92) that is vertical to the connecting cylinder (91), a tennis cage (93) that is welded to one end of the connecting column (92), and a dust removal packing (94) installed inside the tennis cage (93). The connecting cylinder (91) is a "T" shaped column structure.

7. A compressed air drying apparatus according to claim 6, characterised in that: The second pipe (22) has symmetrically distributed air collecting cylinders (222) inside. The air collecting cylinder (222) is a hollow cone structure with one end narrow and the other end wide. The tennis cage (93) is located between the narrow ends of the opposing air collecting cylinders (222).

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